baber/WOPTO huggingface dataset:
Patent GB-655036-A (GB)
Title: Improvements in or relating to control systems for electric motors
IPC: H02P1/04
Filed: 1947-08-27
Abstract: 655,036. Master. control of motors; electromagnetic relays. IGRANIC ELECTRIC CO., Ltd. Aug. 27, 1947, No. 23694. Convention date, Sept. 28, 1946. [Classes 38(iii) and 38(v)] An electric motor control circuit includes a control switch the operation of which is restrained by a winding energized by current derived from the circuit, means being provided for short-circuiting the winding, de-energizing of the winding on short-circuiting being delayed by the discharge through the winding of a capacitor in parallel with the winding, the discharge being confined to a path including the winding by rectifying means. Movement of a master controller from an " off " position closes main and reversing switches and excites the operating-coils 13c-15c of relays 13-15, the contacts of which are adapted to short-circuit resistors R1-R3 in the circuit of a motor having an armature A and series field winding F. Before closure of relay 13, which is delayed by a restraining winding 13b, the restraining windings 14b and 15b of relays 14 and 15 are energized by their connection across resistors R1, R2, and condensers 24 and 25 are charged. When the relay 13 closes, the winding 14b is shunted through a circuit comprising a rectifier 22, the winding 15b now being connected across resistor R2. The condenser 24 discharges through the winding 14b and delays closure of the relay 14 the rectifiers 20 and 22 confining the whole of the discharge current to the circuit of the relay-winding. Closure of relay 14 short-circuits the resistor R2 and effects the sequential closing of relay 15 in a manner similar to that described. Resistor R1 may be connected in circuit during reversecurrent breaking operation. In Fig. 3, the restraining windings of relays 30-32 are connectable in series between a terminal of a main switch 34 and the junction of resistors R5-R6. The restraining windings are therefore energized and the condensers charged before the main switch closes. Closure of switch 34 shortcircuits restraining winding 30b but a circuit is maintained to restraining windings 31b and 32b through rectifier 36. Closure of switch 30 short - circuits resistor R4 and winding 31b, subsequent operation being effected in sequence. Resistors R4-R6 may provide three steps of motor-acceleration. Specification 518,391, is referred to.
Patent GB-506820-A (GB)
Title: Improvements in water-softening apparatus
IPC: C02F1/42
Filed: 1937-08-30
Abstract: 506,820. Rotary engines. LAVECH, E. Aug. 30, 1937, Nos. 23714, 23715, and 23716. Void. Convention dates, Aug. 31, 1936, Sept. 19, 1936, and Dec. 22, 1936. [Class 110 (ii)] [Also in Group I] A cylinder 101 containingbase-exchange material for softening water is rotated by liquid forced from inlets 117 to outlets 118 in an outer casing 111 and acting on flexible blades 113, which are brought into contact with the outer surface of the cylinder 101 as they pass ribs 115, 116 which separate the inlets and outlets. The flexible blades may be replaced by hinged blades engaged by springs.
Patent GB-404241-A (GB)
Title: Improvements in or relating to floor polishers
IPC: A47L13/29
Filed: 1933-08-26
Abstract: 404,241. Polishing-pads. LISTER, E., LISTER, S. T., and LISTER, E. J., (trading as LISTER & CO.), Blackwall Lane, London. Aug. 26, 1933, No. 23729. [Class 19.] The head of a floor-polishing pad consists of a plate 1 provided on the upper surface with projections or members 3, 4, 5 which form depressions into which the edge of the polishing material is inserted and kept in position by wedge-shaped members 8. Both a pad 6 and cloth 7 may be clamped in the same or different recesses by the same or different wedges. The projections, 3, 4 &c. may be cast on the plate 1 or otherwise secured and modifications may be made in the shape and position of the projections.
Patent GB-480959-A (GB)
Title: Improvements in electrically-operated vacuum cleaners
IPC: A47L9/24
Filed: 1936-09-01
Abstract: 480,959. Pipe couplings. SMITH, S. H., and SMITH, C. H. Sept. 1, 1936, No. 23893. [Class 99 (i)] A flexible hose is revolubly coupled to the end of a vacuum cleaner by a grooved ferrule on the hose pushec into a sleeve on the end o the cleaner, the ferrule being held by a spring bar 10 an chored at one end to the sleeve and manually operated at the other, which crosses the sleeve tangentially and engages the groove in the ferrule. The vacuum cleaner comprises a cylindrical casing enclosing motor fan and dust bag. The Provisional Specification states that spring-pressed balls may replace the spring bar 10.
Patent GB-1207110-A (GB)
Title: Method of coating tubular objects with polyurethane foam
Inventor: STEWART SHERMAN ALAN
IPC: B29C48/09
Filed: 1969-05-10
Abstract: 1,207,110. Coating elongated substrates. MARTIN SWEETS CO. Inc. 10 May, 1969, No. 23913/69. Heading B2E. An elongate substrate, e.g. a copper tube, is coated externally with polyurethane foam by moving vertically upwardly through a dispensing head providing an orifice which conforms with and surrounds the substrate, flowing thereon a liquid foamable polyurethane-foaming mixture which is then foamed and cured. In an embodiment, a tube is moved upwardly by rollers and/or a cable, and passed through a cleaning unit and a heating unit for heating to a controlled temperature, e.g. by radiant heat, hot air, or electrically. The components of the foam mixture and a solvent therefor are separately supplied to a mixing head for application to the tube. The heat of the tube causes foaming and curing. The foam may be rigid or flexible; examples of suitable formulations are given. The method may be carried out continuously or intermittently.
Patent GB-1395745-A (GB)
Title: Method and machine for forming thin walled ductile tubes and a radiator core comprising tubes so formed
IPC: B21C37/15
Filed: 1972-05-23
Abstract: 1395745 Making tubes AUSTRALIAN COIL & TUBING PTY Ltd and W A FLINTOFT 23 May 1972 [25 May 1971 7 Oct 1971] 24119/72 Heading B3A A method of forming thin-walled ductile tubes comprises wetting the inside surface of a thickwalled tube with a liquid to prevent adhesion when parts of said surface are pressed together during tube flattening, passing the tube between rollers in a longitudinal direction of the tube a plurality of times to flatten and elongate the tube and to reduce the wall thickness of the tube during each pass, bending the flattened tube about at least one was transverse to the tube length to form a sinuous tube of legs joined by bends, placing the sinuous tube into a sinuous die cavity having a dimension, transverse to the tube length, greater than the thickness dimension of the flattened tube but capable of defining an expanded dimension of the tube, elongating the legs of the sinuous tube in the die cavity, and expanding the tube into the die cavity by applying pressure to the inside of the tube. The thick-walled tube is wet with a soluble oil and may be annealed between passes during the flattening operation. The sinuous tube is placed in a die 6, 7 and the bends 12 of the flattened tube stretched around fingers 9 and 11 by moving the die 6 towards die 7. In the apparatus of Fig. 8 the number of fingers may be changed and the length of the fingers may be altered by slidable blocks 30 and 33. Finally the flattened tube is inflated by sealing one end with a clamp 44 and injecting liquid into the other end by means of a cylinder 35. The bent tube may have external fins fitted to form a heat exchanger.
Patent GB-275815-A (GB)
Title: Improvements in the lubrication of flyer spinning and like frames
IPC: D01H7/20
Filed: 1926-09-30
Abstract: 275,815. Boyd, T. A., Boyd, H. A., Boyd, J., and Boyd, Ltd., J. & T. Sept. 30, 1926. Channels and reservoirs in ball bearings.-In a flyer spinning or like frame in which the flyer is carried on the lower end of an oil cup 8 journaled by ball bearings 5, 6 on a stationary tubular member 2 depending from a rail 1, the cup 8 is provided with an internal annular recess 8<1> disposed above the upper ball bearing 6 and adapted to receive oil forced centrifugally upwards during rotation of the cup, whereby escape of oil is prevented. A ring 9 screwed into the top of the cup and resting on the outer race of the ball bearing 6 has grooves cut in its lower edge to permit the passage of the oil to the recess 8<1>. Oil is supplied to the cup through a hole 10 in the rail 1 and a vertical hole 2<2> in a collar on the member 2, the hole 2<2> being arranged so as to carry the oil clear of the ring 9.
Patent GB-1330113-A (GB)
Title: Devices for skimming excess coating composition form a travell ing web
Inventor: KRAUTZBERGER F
IPC: B05C11/04
Filed: 1971-04-19
Abstract: 1330113 Doctor blades J M VOITH GmbH 19 April 1971 [17 March 1970] 24150/71 Heading D1L In a doctor device for removing excess coating from a moving web, a doctor blade 13 contacts the web, which passes around a roller 4, on inflation of an inflatable rubber tube 14 which is seated in a strip 15 and held in position by a spring steel sleeve 16. The device is shown in its inoperative position, inflation of the tube 14 elongating the sleeve 16 and moving the blade 13 which contacts it towards the web. In the described embodiment the web is of paper and is coated by contact with a roller rotating partly immersed in a trough and having a second roller, also partly immersed in the trough, and rotating in the same direction, contacting it to transfer a coating composition to it for transfer to the web. The roller which contacts the web has its surface in contact with it moving in the opposite direction to the web.
Patent GB-1135156-A (GB)
Title: Improvements relating to packaging
IPC: B65D75/36
Filed: 1967-05-24
Abstract: 1,135,156. Coiled tape package. STANLEY WORKS. 24 May, 1967 [27 May, 1966], No. 24160/67. Heading B8C. [Also in Division A4] A display device for a coiled member, e.g. a replacement tape rule 30 comprises a card 20 carrying a transparent blister 12 formed with a pocket portion 22 for the tape and a necked guide portion 40 leading to a terminal bulb 46 which is frangible e.g. along line 48. The tape end extends tangentially along pocket wall 26, through the neck and tangentially to the opposite wall of the bulb, and has locking openings 50, 52 for connection with the spring in a tape casing when the bulb is broken and the tape withdrawn.
Patent GB-302300-A (GB)
Title: Improvements in treating or retting flax fibre
IPC: D01C1/04
Filed: 1927-09-14
Abstract: 302,300. Waddell, M., and Watson, H. C. Sept. 14, 1927. Retting.-Flax fibre is retted in a, bath containing yeast. Sulphurous acid or other compound or extract containing sulphur may be added to the bath and the retting is affected at a temperature of 70-80‹ F. Where flax grown for fibre is treated, the fibre is twisted into a rove and then retted either on an open reel fitted or mounted on a rove bobbin or the like, or in hank form, or wound on a perforated bobbin, or the rove may be drawn through the retting bath. With flax grown for seed, the plant is threshed and scutched in the same machine, then carded and rubbed into a sliver and twisted into a rove before retting. After retting, the rove may be bleached or treated with a preservative such as tar product to prevent further fermentation, and after retting it may be spun wet or dry. As applied to the plants of the hemp variety, such as sisal, ramie, manilla, and the like, where fleshy covering of the fibre contain pectin and sugar, the retting results also in the production of alcohol.
Patent GB-1105207-A (GB)
Title: Mass production method for semiconductor elements and metallic mounting strips for use therein
IPC: H01L23/495
Filed: 1966-05-31
Abstract: 1,105,207. Making semi-conductor devices. MOTOROLA Inc. 31 May, 1966 [18 June, 19651, No. 24242/66. Heading H1K. The mass production of transistors involves the use of a metallic strip of the form shown. The strip is punched from foil and is provided with groups of leads 23 held in predetermined relationship by base portion 28 and tie bar 26. The terminal portions of the leads are provided with gold-plated connection areas 24. A transistor 20 is bonded to the centre lead of each group and its upper electrodes are connected to the remaining leads by fine wires. The passage of the electrode strip through the automatic wire bonder is determined by indexing holes 29 in the base portion of the strip. The strip is then passed into an injection mould which covers the transistors and adjacent portions of their leads with epoxy resin, the mould being designed so that only the transistors are enclosed while leaving tie bar 26 &c. free of resin and so that weakened (thinner) portions of resin are left between adjacent transistors. The base portion of the strip and the inter-lead portions of the tie bar 26 are then cut away to leave the transistors held together only by the resin. After testing the transistors, the encapsulation is severed to leave individually encapsulated devices which are automatically sorted and collected according to the test results. It is stated that metallic strips with different groups of leads may be used in the production and encapsulation of more complex components.
Patent GB-620419-A (GB)
Title: Improvements in crates for bottles
IPC: B65D25/04
Filed: 1946-08-15
Abstract: 620,419. Bottle crates. HAYWARD, E. Aug. 15, 1946, No. 24273. [Class 18] A bottle crate is strengthened at the top corners by inverted V-shaped pieces d of stout wire extending diagonally across parts of the adjacent sides and welded to the horizontal wires b, b<SP>1</SP>. The loops d<SP>1</SP> extend inwardly of the upper corners and serve as stacking lugs.
Patent GB-260229-A (GB)
Title: Apparatus for handling liquids
IPC: A01M7/00
Filed: 1926-10-01
Abstract: 260,229. Saussard, L., and Boiteux, A. Oct. 23, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Direct air pressure apparatus.-Fig. 1 shows a vehicle with a lead-lined iron tank 3 adapted to be filled by suction and emptied by air pressure, both suction and pressure being produced alternatively by a pump 5. A three-way cock 6 being set appropriately, the pump is operated by a handle 8 to produce, a partial vacuum in the tank, the air being pumped cut through the float valve 10 and pipe 7, so that liquid, for example dilute sulphuric acid, flows in through a hose 15 and connection 16. When the tank is full, the hose 15 is removed, the cock 6 is re-set, and the pump 5 is rotated by road wheels 4 by means of the chain gearing 9, forcing air through the pipe 7 into the tank, and expelling the liquid through a sprinkler controlled by a valve 26 and pedal 20. A gauge, glass 11 has two series of graduations, one showing the level at which the admission of water should be stopped, the other showing the degree of acidity obtained by adding certain quantities of acid. The valve 10, Fig. 2, consists of a float 27, made, for example, of paraffined cork, with a rubber &c. valve 28. It is guided by a perforated disc 29 of ebonite &c. Air is drawn through apertures 30, closed by a rubber disc 31, until the tank 3 is full of liquid, which then enters by the apertures 30 and also by a pipe 32, and closes the valve. In the metering- apparatus for wine, alcohol, petrol, acids, &c., as shown in Fig. 3, two measuring-vessels 34 are filled alternately by the pump 5, which, drawing out the air from one of them, causes the liquid to rise in the corresponding suction pipe 35, and to fill the vessel 34 until the float valve 10 closes the air suction pipe 7. The pressures in the connection 43 and behind the piston 40 then falls, and the piston moves over, a quick throw-over being effected by the pivoted spring link 41, 42. This throws over the control valve 37, placing the other container 34 under suction, and cutting-off the suction from the filled container, which is then free to discharge through the valve 39 and pipe 38.
Patent GB-481125-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B3/08
Filed: 1936-09-05
Abstract: 481,125. Cables. POLLOCK, S. A. Sept. 5, 1936, No. 24332. [Class 36] A conductor M insulated by a wrapping of glass or other vitreous threads or cords, the thread or cord being initially made up of fine long solid filaments stranded together in such a manner that there is substantially no torsional stress in the individual filaments of the thread or cord. The stranded filaments may be produced by the machine described in Specification 481,126, [Group XXIII], which draws the filaments and strands them whilst they are still plastic. The threads may be plaited into a tape before wrapping on the conductor. The insulated conductor, or a number of such conductors may be provided with a lead or other impermeable sheath and the spaces within the cable thus formed filled with a solid or liquid material, or with a gas, such as compressed air. The filling material preferably has substantially the same permitivity as the vitreous material.
Patent GB-699841-A (GB)
Title: Fluid meter
IPC: G01F1/58
Filed: 1951-10-18
Abstract: 699,841. Electric tests and measurements. BOWSER, Inc. Oct. 18, 1951 [Oct. 26, 1950], No. 24346/51. Class 37. In a fluid flow meter of the type described in Specification 695,425, wherein a liquid is passed through a magnetic field and the p.d. induced between two electrodes is an indication of the velocity of the liquid, the accuracy is improved by earthing the liquid in the pipes on either side of the meter. When the pipe lines are of conducting material, terminals 29-32 (Fig. 1) are assembled on the pipes 1, 3 and interconnected symmetrically by similar wires 33, 35. 'In a modification the couplings 2, 4 'between the feed pipes 1, and the meter tube 5 are brought under the cover 9 which is itself made of conducting material, and therefore equates the potential on either side of the meter. When the pipe lines are not made of conducting material, electrodes 55-58, Fig. 3, are provided in the feed pipes 51, 53 and individually earthed.
Patent GB-317448-A (GB)
Title: Sewing machine
IPC: D05B73/00
Filed: 1929-08-09
Abstract: 317,448. Gonyk, I. Aug. 16, 1928, [Convention date]. Frames; driving.-The casing of a sewing- machine comprises two halves stamped from sheet-metal, one of which is detachable to expose the mechanism. The fly-wheel is replaced by masses of metal symmetrically disposed on the shaft within the casing. The mechanism includes a sliding disc clutch and the shaft is mounted in ball-bearings. The two halves 1, 2 are stamped from sheet-steel or brass and polished or plated so as to dispense with the usual painting or lacquering. The half 2 is brazed or welded to a frustro-conical ring 5 on the sheetmetal work plate 4 and has secured the I-shaped bar 9. The half 1 is secured to the ring 5 by screws or bolts and fits into a recess in the bar 9. The shaft 8 turns in ball-bearings 12, 14 and carries symmetrically disposed metal masses 23, 15, 18 instead of a fly-wheel. A starting handle 22 is provided. The shaft is held against axial movement bv the abutment of the handle 22 against the casing and the metal mass 15 against the bearing 12. The shaft is driven by a wire rope 43 engaging a groove 42 in a leather or rubber filler 41 held in a groove in the disc 33 by a detachable end disc 40. This disc rotates on ball-bearings on a sleeve 24 secured to the shaft. A hub 26 is keyed to the sleeve 24 and couples the shaft to the driving disc 33 by lugs engaging holes. The hub 26 can slide axially for coupling and uncoupling and is operated by a pair of diametrically opposite handles projecting from the casing halves. The shuttle is driven by the sheet-metal driving rod 20 and eccentric 19. Feed by dogs.-The feed dogs are driven by a sheet-metal rod 17 pivoted at 47 to an arm 46 rocking on an adjustable pivot 50 on a plate 49 pivoted to the fixed partition 51. The plate is moved by a gear 54 engaging holes therein and turned by the external handle 55, to vary the length of the stitch, Fig. 4. The rod 17 actuates the sheet metal feed-bar through a fork 68.. The bar is rolled, Fig. 5, and has fillers 65 at the ends forming oil cavities 64 and journal pin bearings 63. The insides of the forks 68 and 69 are lined with bronze to reduce wear.
Patent GB-1154441-A (GB)
Title: Improvements in or relating to Devices for Forming a Desired Exposure Pattern in a Light-Sensitive Layer provided on a Support
IPC: G03B15/00
Filed: 1966-06-01
Abstract: 1,154,441. Camera shutters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 1, 1966 [June 4, 1965], No.24451/66. Heading G2A. Shutter members 7, 8, 9, 10, 11, 12, 13 and 14 are arranged between a light source 1 and plate 2 such that they can cover a slot 3 elongated in the longitudinal direction. The members are secured to rods 7<SP>1</SP>, 8<SP>1</SP>, 9<SP>1</SP>, 10<SP>1</SP>, 11<SP>1</SP>, 12<SP>1</SP>, 13<SP>1</SP> and 14<SP>1</SP> respectively of Piezo-electric material which, upon the application of a voltage to an electrode, (not shown) associated with each rod bends the corresponding rod to close the adjacent portion of the slot 3. The electrodes may be energized according to a given programme to produce a desired illumination pattern.
Patent GB-158860-A (GB)
Title: Gas operated fire extinguisher
IPC: A62C13/00
Filed: 1920-08-23
Abstract: 158,860. Schworetzky, G., WerlÚ, N., and Graaff, C. Feb. 11, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Extincteurs.-The striking-pin passing through the closing-cap of a fire-extinguisher also acts as the discharge valve, its stem being bored longitudinally and transversely, so that when it is driven in, the transverse bore registers with a passage for the extinguishing-liquid. In the form shown in Fig. 1, the striking-pin a also forms the discharge nozzle, and its bore e is adapted to register with an annular passage g in the packing, leading to the internal discharge pipe r. The pin a is held in the depressed position by the engagement, with a bevelled flange t, of catches z on a resilient ring k, the catches z being released by squeezing the ring k, to allow a spring f to return the pin a to normal position. In a modification, Fig. 2, the bore e is adapted to open communication between a pipe h and a pipe r, which leads to a, nozzle at the other end of the extincteur. The pin a is held in the operative position by the friction of the packing, which consists of a lead cylinder filled with sand. The pin a is adapted to be retracted by means of a screw w. The handle m is shell-shaped, and is grasped through an opening formed on one side of the handle by a depression in the wall of the main container.